METHOD FOR PRODUCING LACTIC ACID AND METHOD FOR PRODUCING POLYLACTIC ACID

EPO Patent Application EP 3147/275 A1
Application Date: Mar. 29th, 2017

ABSTRACT

Lactic acid obtained by a method for producing lactic acid, the method comprising: (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability...
Assignee(s):
Inventor(s):
Sawai, Kenji
Sawai, Hideki
Mimitsuka, Takashi
Ito, Masateru
Yamada, Katsushige
Kawamura, Kenji
Minegishi, Shin-ichi
Nakagawa, Izumi
Nagano, Tatsuya
Application Number:
16196147.9
International Classification:
C07C 51/42 (20060101); C12P 7/56 (20060101); C07C 59/08 (20060101); C08G 63/06 (20060101); C08G 63/08 (20060101)
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CLAIMS

What is claimed is:

Lactic acid whose 90% aqueous solution contains methanol at a concentration of not more than 70 ppm, pyruvic acid at a concentration of not more than 500 ppm, furfural at a concentration of not more than 15 ppm, 5-hydroxymethylfurfural at a concentration of not more than 15 ppm, methyl lactate...

DESCRIPTION

TECHNICAL FIELD

The present invention relates to a method for producing lactic acid, in which a microorganism having an ability of lactic acid fermentation is cultured and lactic acid produced in the obtained fermentation broth is separated, and a method for producing a polylactic acid using the lactic acid obtained by the...
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